Heater or cooling fan



FIG. 1 is a front perspective view of a heater or cooling fan showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is an enlarged top plan view thereof; and

FIG. 7 is an enlarged bottom plan view thereof. 

The ornamental design for heater or cooling fan, as shown. 